Home / 71,455.10-98,606.31-39,624.26

Finding the Fourth Proportional to 71,455.10, 98,606.31 and 39,624.26

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Solution

The fourth proportional to 71,455.10, 98,606.31 and 39,624.26 is: 54,680.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,455.10 : 98,606.31 = 39,624.26 : x
  2. Step 2: Convert to fraction form
    71,455.10/98,606.31 = 39,624.26/x
  3. Step 3: Cross multiply
    71,455.10x = 98,606.31 × 39,624.26
  4. Step 4: Simplify right side
    71,455.10x = 3,907,202,065.08
  5. Step 5: Solve for x
    x = 3,907,202,065.08/71,455.10
  6. Step 6: Final answer
    x = 54,680.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.